{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "potential therapeutic event", "arguments": ["Effect", "Subject.Population", "Treatment.Route", "Subject.Gender", "Subject.Disorder", "Treatment.Disorder", "Treatment.Freq", "Treatment.Duration", "Combination.Drug", "Treatment.Dosage", "Subject.Race", "Subject", "Treatment", "Subject.Age", "Treatment.Drug"]}], "input": "On day 4, following 3 doses of dalteparin, the patient developed acute respiratory distress attributable to a massive right hemothorax confirmed by computed tomography pulmonary angiography (CTPA) and intercostal drainage of 1500 mL of frank blood."}
{"potential therapeutic event": []}